Giszmo is right, this site isn't exactly good at attracting new customers. Why having to deposit a minimum of 10$? Why not just tipping girls directly?
A) Minimum is $10 because sites in the "normal world" are used to credit card fees, etc. They have not yet realized the power of Bitcoin. Let's help them.
B) The girls don't accept Bitcoin (yet). When you deposit coins they are converted to USD for the girls who are paid normally.
If sites like this see that Bitcoin is a viable payment option (which we know it is not only viable but superior), then they will add Bitcoin to other sites. In time, Bitcoin will be everywhere. When Bitcoin is everywhere, normal girls will start realizing it make sense to be paid out in Bitcoin. Then, site operators will realize they can start cutting out visa/mastercard/etc., and will start allowing girls to be tipped directly with coin.
But you don't get to that last phase all at once. Business doesn't work that way.
Bitcoin is moving from the phase of "bitcoin only sites built by bitcoiners" to the real world, and is going to change everything. But first, we need to help with these steps along the way, and support the sites that are willing to take them.
I wish MFC took bitcoins I am going to email them today. But at lasted 
